Answer:
The main producers in the marine ecosystem are plankton, whereas in the African savanna system, it's trees and grass. And in the marine ecosystem, sunlight is not available for all producers
Explanation:
Normal homeostatic conditions require potassium concentrations to be about 1000 times higher inside the cell than in the blood.
What mechanism does a cell use to move these small potassium molecules into the cell against the concentration gradient?
A.
active transport by proteins
B.
active transport by endocytosis
C.
passive transport by osmosis
D.
passive transport by diffusion
How does double circulation prevent the mixing of oxygenated and deoxygenated blood
Answer:
By the process of double circulation the oxygenated blood go through its own path and deoxygenated blood go through its own path
2. Examine the arm bones of the two skeletons. Was Grandmother right- or left-handed? How
about Grandfather?
Answer:
He looks ambidextrous but he may also be right handed due to the slight more bone on his right arm.
Explanation:
Its a little hard to tell, my guess is that he was ambidextrous, but his right arm does look slightly more dominant so really it may be his right arm.
A change in the characteristics of
populations of living things over
time is called evolution.
Agree or disagree
Answer:
Agree
Explanation:
Answer:
Yes, it is true
Explanation:
Evolution is the processes in which organisms change or evolve, either anatomically or physiologically.
can anyone give me these two answers please i’ll give u 15 points
Answer:25%
Explanation:
Why is the nutrient cycle important?
a) both answers
b) neither answers
c) it limits the accumulation of elements which may have become toxic
d) it guarantees ecosystems don’t run out of nutrients
I beleive the answer is D, it is called the Nutrients cycle.
If something irritates the nerves going to your diaphragm, it will spasm
and you will ______.
Answer:
guess
Explanation:
plz help meeee!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
i think it is the middle one
B
the dispersal of ink in a beaker of water is an example of
a. endocytosis
b. diffusion
c. active transport
d. osmosis
Answer:
A
Explanation:
Diffusion is the answer:)))
Which gas would the leaf disks produce if they were carrying out the light-dependent
reaction? What would this cause them to do?
Answer: In respiration, glucose is broken down to produce energy that can be used by the cell, a reaction that uses O 2 and produces CO 2 as a byproduct.
Explanation:
1. Which of the following weather
conditions support the development of
a hurricane?
Answer:
what are the options?
Explanation:
give me the options
what is the function of the enzyme-substrate complex
two or more functions that must occur
inside of our body so that we stay alive.
Answer:
hope this helps u
Explanation:
These many functions can be summarized in terms of a few that we might consider definitive of human life: organization, metabolism, responsiveness, movement, development, and reproduction.
what is the tool to meausre wind direction?
Answer:
the answer is anemometers hope this helped!
Through which conversion is energy released?
Answer:
ATP to ADP
Explanation:
bc yah
(gene) a segment of DNA that ______ for a trait and is transferred from parent to offspring.
List two factors that may cause cancer, and explain those factors as to how they affect cancer.
Answer:
Biological or internal factors such as age,gender, inherited genetic defects,skin types,etc
environmental exposure eg exposure to Radon and UV radiation and fine particulate matter
summarize the importance of stem cells
Answer:
Stem cells can become almost any cell in the human body.
Explanation:
This is important because in embryonic development, the body uses stem cells to form each individual part. For example, a single stem cell could become a heart cell, or brain cell, or a blood cell, or more. This is also important for possible treatments. In order to heal damaged or diseased bone tissue, blood stem cells can be taken out of the same person and used to fix the tissue. This allows for a lower rejection rate sense the cells used to fix the tissue were already part of the person's body.
Which organisms undergo Carnegie stages?
Answer:
B: Sheep
Explanation:
only mammals undergo Carneige Stages
Answer:
Salamander and Sheep!
Explanation:
2Mg + O2 ----> 2MgO
in the equation above , how many atoms are in the oxygen molecule
A.2
B.0
C.1
D.3
Answer:
2
Explanation:
In 1907, Dr. Duncan MacDougall performed a series of experiments in which he attempted to measure the weight of the soul as it left a dying person. In his experiments, MacDougall placed a dying person on a scale and measured their weight immediately prior to and following death. MacDougall determined the change in weight to be approximately 21 grams. From these experiments, he concluded that the soul exists and has mass. What is the fundamental scientific flaw in his conclusions? (5 points)
They are based on the concept of the soul, which is beyond the bounds of science.
They are based on the idea that the soul is made of matter, not energy.
They are based on the assumption that the soul does not remain in the body after death.
They are based on the concept that the soul can be measured.
Answer:
I think so..
A. They are based on the concept of the soul, which is beyond the bounds of science.
Answer:
A. They are based on the concept of the soul, which is beyond the bounds of science.
Explanation:
Good luck! Hope this helped :)
which perspective says that babies are biologically equipped for using language but also need experience?
Answer:
Interactionist
Explanation:
What molecule has a r group
Answer:
Amino acids
Explanation:
Identify the plant tissues in the three images.
A
B.
C
I originally asked for the images but I will give it my best shot at answering your question without them! :D
There are only three types of plant tissues:
1. Dermal
2. Ground
3. Vascular
The dermal tissue is the outside of the plant's root, stem, or leaf, A.K.A the the skin. If you're looking at a circular image, what ever is pointing to the outside ring of the stem is the dermal tissue.
The ground tissue is the flesh of the plant that is inside the dermal tissue. It surrounds the vascular tissue in the middle of the stem. Whatever letter is pointing to the wide, fleshy ring, that is touching the dermal tissue is the ground tissue. It is the largest part of a plants stem, roots, or leaves.
Lastly, the very inner ring or rings of the plant is the vascular tissue. It's made up of xylem and phloem. This can be found in many different places depending on the part of the plant, but what you're looking for is tiny circles within the ground tissue. If you're looking at the roots, you will see one circle in the very center of the plant, surrounded by ground tissue. If you're looking at the leaves, you will see one circle as well, and additionally other tiny circles throughout the ground tissue in each wing. Lastly, if you're looking at the stem, you'll see a circle of tiny circles within the ground tissue. These small circles are all vascular tissue.
Image 1:
A. Dermal tissueB. Vascular tissueC. Ground tissueImage 2:
A. Epidermal tissueB. Vascular tissueC. Ground tissueImage 3:
A. XylemB. PhloemC. Ground tissueImage 1:
The dermal tissue is the outermost layer of cells that covers the plant. It is responsible for protecting the plant from the environment. The vascular tissue is a system of tubes that transports water and nutrients throughout the plant. The ground tissue is the tissue that makes up the bulk of the plant. It is responsible for photosynthesis, storage, and support.
In the image, the dermal tissue is the thin layer of cells that covers the surface of the leaf. The vascular tissue is the network of tubes that runs through the leaf. The ground tissue is the bulk of the leaf, and it is made up of cells that contain chloroplasts.
Image 2:
The epidermal tissue is the outermost layer of cells that covers the plant. It is responsible for protecting the plant from the environment. The vascular tissue is a system of tubes that transports water and nutrients throughout the plant. The ground tissue is the tissue that makes up the bulk of the plant. It is responsible for photosynthesis, storage, and support.
In the image, the epidermal tissue is the thin layer of cells that covers the surface of the stem. The vascular tissue is the network of tubes that runs through the stem. The ground tissue is the bulk of the stem, and it is made up of cells that contain chloroplasts.
Image 3:
The xylem is a type of vascular tissue that transports water and nutrients from the roots to the rest of the plant. The phloem is another type of vascular tissue that transports sugars from the leaves to the rest of the plant. The ground tissue is the tissue that makes up the bulk of the plant. It is responsible for photosynthesis, storage, and support.
In the image, the xylem is the dark brown tissue that runs through the center of the stem. The phloem is the lighter colored tissue that surrounds the xylem. The ground tissue is the bulk of the stem, and it is made up of cells that contain chloroplasts.
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The complete question is:
Identify the plant tissues in the three images.
A. Is Dermal
B. Is Vascular
C. Is Ground
please help me fill out this concept map!! it’s about Cultural Eutrophication
Okay where is the map
Polypeptides are chains of amino acids. They can coil/fold into different shapes. Some 'R'-groups are either hydrophobic, hydrophilic, or neutral in their charge. Suppose you have a very long polypeptide, where a part of the chain is hydrophobic and another part is hydrophilic. I go ahead and drop this long polypeptide in water and it coils up. How do you think it would coil? Why? What can you infer about the proteins in our bodies regarding this situation
Answer:
The hydrophilic part of the polypeptide chain would be oriented towards the surrounding water while the hydrophobic portion would be arranged away from the water and would make the hydrophobic interior resulting in coiling of the polypeptide chain. The body proteins assume the shapes to organize their hydrophobic parts away from the watery fluid.
Explanation:
Amino acids are the monomers of proteins. Each amino acid, present in proteins, has a central carbon atom. Four functional groups are attached to the central carbon atom of amino acid. These are the carboxyl group (COOH), amino group, a hydrogen atom (H) and a side chain (called R group). Amino acids differ from each other for the side chain present in them. Based on the nature of the side chain, amino acids are hydrophobic or hydrophilic or neutral. Sidechains of some amino acids are charged and have positive or negative charges on them.
The extracellular fluid of the body is a watery medium. Blood also has liquid plasma that is 99% water. The intracellular fluid, called cytosol, is also a water-based liquid.
The hydrophilic side chains of the amino acids interact with the watery surroundings. They can make hydrogen bonds with the water. The charged hydrophilic R groups make electrostatic interactions with the surrounding medium. The hydrophobic R groups of the amino acids tend to arrange themselves away from the watery medium. This makes the part of the polypeptide chains with hydrophobic amino acids to fold so that these R groups are oriented away from the water.
Similarly, when a long polypeptide chain is dropped in the water, the hydrophobic R groups are arranged away from the water while the hydrophilic ones are arranged towards the surface of the chain facing the water. It is done to adopt a stable shape where maximum attraction forces are established.
9. The phases of the moon are the regular changes in how the moon looks from Earth. In which phase is the moon completely visible from Earth?
Group of answer choices
A. Full moon
B. New moon
C. Waxing gibbous
D. Waning crescent
Answer:
A, full moon
hope this helps ;)
In the full moon phase, the moon is completely visible from the Earth. Therefore, the correct option is A.
What are the phases of the moon?The phases of the moon results from the changing position of the moon relative to the Sun and the Earth.
There are 8 phases of the moon:
1.) New moon-The moon is between the sun and the earth, with its illuminated side facing away from us.
2.) Waxing crescent-The moon is partially illuminated increasing in size, appearing as a crescent shape.
3.) First quarter-The moon is 90 degree east of the sun and appears as a half moon shape.
4.) Waxing Gibbous-The moon appears as gibbous shape.
5.) Full moon-The moon is on the opposite side of the earth from the sun, and its entire illuminated side is visible.
6.) Waning gibbous-The moon is partially illuminated and decreasing, appearing as a gibbous shape.
7.) Third quarter-The moon is 90 degree west of the sun and appears as a half moon shape.
8.) Waning crescent-The moon is partially illuminated and decreasing, appearing as a crescent shape.
The cycle of phases repeats approximately every 29.5 days, from new moon to new moon. Therefore, the correct option is A.
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In what ways are the ingredients in a cake like the gases in Earth’s atmosphere?
Answer:
because there are different types of gases and layers of the atmosphere on earth.
Explanation:
what is the definition of rough ER
Answer:
Edoplasmic reticulum
Explanation:
it's a network of membranes that folds, modifies, and transports proteins throughout the cell.
Need Help Earth Science: Due in 3 minutes
Which of the following is not an example of a fossil:
Question 1 options:
A) petrified wood
B) coprolite
C) amber
D) mud
Answer:
Answer is Mud,